no code implementations • 21 Oct 2020 • Frank Neumann, Mojgan Pourhassan, Carsten Witt
Linear functions have been traditionally studied in this area resulting in tight bounds on the expected optimisation time of simple randomised search algorithms for this class of problems.
no code implementations • 6 Mar 2019 • Mojgan Pourhassan, Vahid Roostapour, Frank Neumann
Similar to the classical case, the dynamic changes that we consider on the weighted vertex cover problem are adding and removing edges to and from the graph.
no code implementations • 13 Feb 2019 • Vahid Roostapour, Mojgan Pourhassan, Frank Neumann
In this paper, variations of the Packing While Travelling (PWT) -- also known as the non-linear knapsack problem -- are studied as an attempt to analyse the behaviour of EAs on non-linear problems from theoretical perspective.
no code implementations • 22 Jun 2018 • Vahid Roostapour, Mojgan Pourhassan, Frank Neumann
Many real-world optimization problems occur in environments that change dynamically or involve stochastic components.
no code implementations • 6 Apr 2016 • Mojgan Pourhassan, Feng Shi, Frank Neumann
A rigorous runtime analysis of evolutionary multi-objective optimization for the classical vertex cover problem in the context of parameterized complexity analysis has been presented by Kratsch and Neumann (2013).
no code implementations • 9 Jan 2014 • Dogan Corus, Per Kristian Lehre, Frank Neumann, Mojgan Pourhassan
For the generalised minimum spanning tree problem, we analyse the two approaches presented by Hu and Raidl (2012) with respect to the number of clusters that distinguish each other by the chosen representation of possible solutions.